Two very personable Bill Howe technicians arrived as scheduled to replace our 21-year-old furnace with a new one which we had ordered 2 weeks earlier. They went right to work taking out the old furnace. They sealed the return duct cavity, installed better piping for the gas supply, and installed the new furnace expertly. They then installed a new thermostat and tested the system. This took less than 4 hours. It was an OUTSTANDING job, typical of our numerous interactions with the Bill Howe organization!